Pennsylvania CDL General Knowledge study materials
Pennsylvania CDL General Knowledge study resources

Pennsylvania CDL General Knowledge: Crash Procedures

Pennsylvania CDL General Knowledge · Work through your exam, one topic at a time.

All guide sections

Crash Procedures

What the exam tests

Crash procedures cover stopping, protecting the scene, aiding the injured, and reporting. Questions test the legal and safety steps after a collision.

Core rules

  • Stop and remain at the scene; leaving can be a criminal offense.
  • Warn traffic with flashers, reflectors, or flares when safe.
  • Call 911 and request medical help for injured people.
  • Do not move an injured person unless there is immediate danger such as fire.
  • Exchange information and report the crash as required.

Worked example

A minor collision blocks a lane on a highway. The driver stops, turns on four-way flashers, sets reflectors behind the vehicle, checks for injuries, and calls 911. Moving an injured person could worsen a spinal injury. The reasoning is that scene safety and medical care come before paperwork or moving vehicles.

Traps that cost marks

  • Leaving the scene before exchanging information.
  • Moving an injured person who is not in immediate danger.
  • Failing to warn approaching traffic.
  • Forgetting to report the crash when required.

Exam tip

Crash-procedure answers follow a sequence: stop, protect, aid, report.